Unless he walked out and admitted to wearing the wrong color tie, then followed it up with explicit direction on what color of tie to wear, it wouldn't help.

Instead, accounts of the interview process, questions asked, maneuvers performed, simulator profiles, etc, are all available in abundance, with detailed accounts, backgrounds of the applicants, citation as to whether hired and into what, and so on. One is given everything one needs to know, without having to worry about what one doesn't need to know.

Researching an employer is part of the preparation that comes with accepting and attending an interview. If one can't be bothered to do that, one probably doesn't belong there.